I have an e-machine T-3085. Periodically it freezes at the "e" logo on start-up. Physically unplugging and replugging (sometimes more than once) the beast seems to fix the issue, eventually. This happens after a full shut-off, usually over night. It does not initiate start up and is not checking any other drives for a disc etc. Is this a bios issue? Any insight on a solution? Thanks.